儿童切除后单半球患者的基于空间和对象的注意
Sophia Robert1, Michael C Granovetter2,3,4, Shouyu Ling5
1Department of Psychology and Neuroscience Institute, Carnegie Mellon University, Pittsburgh, PA, USA. srobert@andrew.cmu.edu.
Scientific reports
|August 14, 2025
概括
经过半球切除术的个体表现出对物体的注意力转移受损,与典型的对照人群不同. 这凸显了大脑损伤如何影响两个半球的注意力系统发育.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 发育神经科学的发展神经科学.
背景情况:
- 成年人的注意力处理通常是横向的:空间注意力向右半球 (RH) 和基于对象的注意力向左半球 (LH).
- 了解注意力横向化及其发展对于认知神经科学至关重要.
研究的目的:
- 为了比较儿童半球切除术 (LH或RH) 患者的空间和基于对象的注意力侧面化概况与典型的发展对照.
- 研究神经损伤如何影响注意力系统的发展.
主要方法:
- 利用修改的两矩形注意力范式来评估注意力处理.
- 患者 (LH或RH半球切除术) 和年龄匹配的对照组之间的反应时间 (RTs) 和注意力成本的比较.
主要成果:
- 患者表现出较慢的RTs,但受益于有效的提示,类似于对照组.
- 患者对无效试验的成本显著增加,特别是难以将注意力转移到物体上,无论半球被切除.
- 控制没有显示有线和无线对象之间的RT成本差异显著.
结论:
- 儿童半球切除术导致注意力转移到物体中的困难,这表明注意力系统的发展发生了变化.
- 这些发现有助于理解注意力发展和神经损伤对半球功能的影响.
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